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土壤可蚀性是土壤侵蚀预报和土地利用规划的重要参数,本文采用EPIC(Erosion Productivity Impact Caculator)模型中土壤可蚀性因子K值为指标,利用新疆土壤污染状况调查资料,探讨新疆土壤可蚀性K值及分布特征,并采用Kriging插值法进行全疆K值的空间插值。结果表明:新疆各类型土壤表层平均K值为0.238~0.441,主要分布在可侵蚀-易侵蚀-较易侵蚀范围;其中K值最大的土类为石质土和风沙土,均属于岩成土土纲;K值最小的土类为棕钙土;不同的土地利用方式,土壤可蚀性特征也不同,耕地土壤K值最大。从总体上看,土壤经过多年耕种,抗侵蚀能力明显下降。
Soil erodibility is an important parameter of soil erosion prediction and land use planning. In this paper, the soil erodibility factor K of EPIC (Erosion Productivity Impact Caculator) model is used as an index. Based on the survey data of soil pollution in Xinjiang, Sexual K value and distribution characteristics, and Kriging interpolation method for Xinjiang K value of spatial interpolation. The results showed that the average k of surface layer of all types of soil in Xinjiang was 0.238 ~ 0.441, which mainly distributed in the erosive-erosive-erosive area. The soil with the largest K value was stony soil and aeolian sandy soil, The soil with the smallest K value is the brown earth, and the soil erodibility characteristics are different with different land use types. The K value of the cultivated land is the largest. Overall, the soil after years of cultivation, anti-erosion ability decreased significantly.